Aftermarket fuel additives
NISSAN does not recommend the use of any aftermarket fuel additives (for example, fuel injector cleaner, octane booster, intake valve deposit removers, etc.) which are sold commercially.
Many of these additives intended for gum, varnish or deposit removal may contain active solvents or similar ingredients that can be harmful to the fuel system and engine.
See also:
Three-way catalyst
The three-way catalyst is an emission control
device installed in the exhaust system. Exhaust
gases in the three-way catalyst are burned at
high temperatures to help reduce pollutants.
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Vehicle security system
The vehicle security system provides visual and
audible alarm signals if someone opens the doors
or trunk lid when the system is armed. It is not,
however, a motion detection type system that
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Temperature
High temperatures accelerate the rate of corrosion
to those parts which are not well ventilated. ...